physicsA 100kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal, the coefficient of friction of 0.005 between the ramp and the mass. The mass slides down the ramp and then slides to a stop on a surface with coefficient of ...
May 6, 2010

algebratranslate to an algebraic expression. use x and y for variables. three less than a product of two numbers
March 11, 2010

PrecalculusHomework help quick given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g f)(-9) the options are 145/21 83/82 145/64 17/9 this is a homework question and it is due tommorow can u also explain or sow how you arrived at that answer Thanks in advance
February 17, 2010

MathThat is very correct 7/20 I've been a math teacher for over 30 years. And I had my students do 9-7 Independent And Dependent Events And we did 1-9 togather. So then I said 10 is a hard one i'm gone let them sweat. I know why you get 15/25 because 15 red pencils and add...
February 10, 2010

mathyou have to solve for x in both problems. in the first problem you have to find common denominators before adding them together. then add them together and solve for x. x=2.4 in the second problem you have to find out what x is less than. add four to both sides then divide by...
November 16, 2008

mathlike terms are terms that look the same. ex: 2x+3-2=12 the +3 and the -2 are like terms so you can combine them together. 2x-1=12
November 16, 2008

college algebrayou have to solve for x. -3(x+5)+3 distribute. you'll get... -3x-15+3=12 combine like terms. -3x-12=12 solve for x. add 12 to both sides. -3x=24 divide both sides by -3 x=-8 plug the-8 back in to x to see if your answer is right. -3(x+5)+3=12 -3(-8+5)+3=? -3(-3)+3=? 9+3=? ...
November 16, 2008

trigyou need to use a calculator for this.. but... sin64=.920 tan21=-1.53 cos67.4=-.144
November 16, 2008

algebrathe answers are... w=23 l=30 use this formula... 2L+2W=106 2(w+7)+2W=106 ^Factor the 2 with (W+7) then solve for W. thats the first part. then use the same formula... 2L+2W=106 plug in your W then solve for L
November 16, 2008

TrigI was just wondering if anyone can explain the Law of Sines- "Ambiguity Case" to me, in a way that is easy to understand.
November 15, 2008

MathWhat volume, in ml, of a 60% of HCl acid solution must be added to 100 ml of a 30% HCl solution to make a 36% HCl solution. We need 2 alegabreic (?) equations. The first I can get is: 0.36x - 0.60y = 100ml (this is probably wrong)? Blah. I can't get the other one. -.- ...
January 31, 2007

Chemistry - Help balancing...Anyone able to help me figure out the products and balance this equation? CH3COOH (aq) + NaOH (aq) -> I know it equals a salt and a base... But I can't figure out what... :P Would it possibly be... NaCH3COO + HOH for products? yes.
November 1, 2006

mathhow can we find the area of a figure. how can i find the area of this figure. jf=16 cm I can't see the figure, but generally we need to know the sides and angles in order to calculate the area.
September 25, 2006

Distributive propertyI really "dont like the Distributive Property". SO can you help me? Its telling me to use the distributive property to rewrite each expression.Then solve."Please help"
September 20, 2006